Just installed for testing purposes the new PrestaShop™ 184.108.40.206 shop platform. Everything went smooth untill i tried to login into backend panel. All instalation was made under Firefox and no error occurred, but after inserting correct username and password no error message was displayed but no redirect to administrative panel ocurres. IInstead i was able to successful login from Internet Explorer, so occurred to me that can only be a cookie problem. I’ve deleted all prestashop related cookies and here we go ! … is working.